- Run Line
- Money
- Total
- Merged
The upcoming MLB game between the Chicago Cubs and Seattle Mariners on March 21, 2026, will be held at Peoria Sports Complex in Peoria, AZ. The game airs on Seam TV. Current odds favor the Seattle Mariners with a Moneyline of -115 at BetOnline, while the Cubs are at -105. The run line and over under betting lines are expected to reflect the Mariners' slight advantage. Opening odds showed similar pricing, indicating stable betting odds. These insights provide an essential perspective on betting trends for this matchup in the MLB season.
For more detailed betting lines and odds, visit the MLB odds page.
![]() CLEP. Messick (L) 13-1123% -137BetOnline | |||||||
MIAC. Paddack (R) 11-1226% -109BetAnything | |||||||
![]() DETK. Montero (R) 12-1119% -106BetAnything | |||||||
TBS. Matz (L) 12-1073% +101BetOnline | |||||||
WSHF. Griffin (L) 10-1371% +127Bet105 | |||||||
BOSC. Early (L) 9-1358% -119BetAnything | |||||||
NYMN. McLean (R) 7-1530% -152BetOnline | |||||||
![]() CHCS. Imanaga (L) 13-915% -125BetOnline | |||||||
KCK. Bubic (L) 7-168% -117Bookmaker | |||||||
![]() TEXK. Rocker (R) 11-1150% -106Bet105 | |||||||
![]() COLUndecided 9-1480% +130Bookmaker | |||||||
LAAJ. Kochanowicz (R) 11-1381% -110BetOnline | |||||||
SEAL. Castillo (R) 10-1421% -153Everygame | |||||||
![]() AZM. Kelly (R) 13-911% -141Bet105 | |||||||
SFL. Roupp (R) 9-1391% +157BetOnline | |||||||
MIAJ. Junk (R) 11-12- -121BetOnline | |||||||
![]() CLET. Bibee (R) 13-11- -127MyBookie | |||||||
TBN. Martinez (R) 12-10- -125BetOnline | |||||||
KCM. Wacha (R) 7-16- -130BetOnline | |||||||
LAAJ. Soriano (R) 11-13- -143BetOnline | |||||||
SEAL. Gilbert (R) 10-14- -180BetOnline | |||||||
![]() DETC. Mize (R) 12-11- -128BetOnline | |||||||
WSHZ. Littell (R) 10-13- +134BetOnline | |||||||
BOSR. Suarez (L) 9-13- +118BetOnline | |||||||
![]() AZE. Rodriguez (L) 13-9- -150BetOnline | |||||||
SFT. Mahle (R) 9-13- +171BetOnline |